| Test code | Test name | Clinical description |
|---|---|---|
| S469 | Cancer Ag 15-3 (CA 15-3) | Most widely used marker for monitoring breast cancer recurrence and metastasis |
| E514 | Cancer Ag 72-4 (CA 72-4) | May be elevated in some mucinous breast cancers |
| C408 | Carcinoembryonic Ag (CEA) | Elevated in metastatic or recurrent breast cancer |